Exclusively Not Dating 

The period of a relationship between "just friends" and "dating". In this phase both people haven't made the commitment for an official relationship, but each would be upset if the other got involved with someone else.

He took his relationship status off of Facebook. He must be exclusively not dating.

Exclusively Not Dating by Mavtak January 12, 2010

Exclusively not dating 

A term used to define the status of a relationship. Neither of the two partners are seeing anyone else, but the title boyfriend/girlfriend puts too much pressure or seriousness to a loosely dating couple. (It is an exclusive relationship and neither are currently looking for another partner--but you would both still be considered "single")

A less tactful term could be “fuck buddies” but sex is not a prerequisite, and emotions are involved.

It's meant to be vague and confusing, because the relationship gets complicated when the lines aren't clearly defined, and the couples status is more than friends, but less than a committed relationship since emotions start to get involved.

Example:
R: So are you two seeing each other, or what?
K: Well sortta, we’re exclusively not dating.

Exclusively not dating by Allie-oop September 3, 2008

Exclusively Not Dating 

The period of a relationship between "just friends" and "dating". In this phase both people haven't made the commitment for an official relationship, but each would be upset if the other got involved with someone else.

He took is relationship status off of Facebook. He must be exclusively not dating.

Exclusively Not Dating by Mavtak January 12, 2010